Double window construction



Oct. 2l, 1941. c. s. HENDERSON lDOUBLE WINDOW CONSTRUCTON Filed Jan. 26, 1939A.A

Patented Got. 21, 1941 osslfesi f This invention relatesv to doublecwindow'*cenet st'ructions for railway' cars; buses and other closures,- and particularly for air'i-conditionedsene closures; and has foritscbje'ct a""wiidow conI- struction embodyingfr cushioning and .sealing means-between the margins of glass panels which prevents Vunintended interchange of air between the space between the glass panels and the surrounding atmosphere inside and outside of the car, bus or other enclosure, in order to prevent steaming or clouding of window panels. More specically, it has for its object a sealing means between the margins of the glass panels consisting of sections carried by the sash respectively and thrusting against the margins of the glass panels and a third or intermediate section carried by the window frame, together with means for clamping the sash toward each other and compressing the sealing means against the glass panels and the sections carried by the sash against the intermediate section.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is an isometric sectional view vvof a window construction embodying this invention.

Figure 2 is a sectional view of a slightly different form from that shown in Figure 1.

Figure 3 is a sectional view of another embodiment of the invention.

I designates the window frame, this being illustrative of the top and bottom rails and the uprights of a window frame confining a window opening which is either square or rounding at the corners.

2 and 3 designate a pair of sash mounted in the Window frame and formed with means for. receiving the margins of glass panels 4, 5. 6 and 'I designate, respectively, sections of a spacing means between the glass panels 4, 5, and 8V a third or intermediate section, the sections 6, 'I being carried by the sash 2, 3, respectively, and the intermediate section 8 by the frame I. The spacing means is of compressible resilient material, as rubber, and the sections I, I are formed integral with cushioning and sealing means .9, I for the margins of the glass panels 4, 5, respectively, this sealing means being located in inwardly facing channels II, I2 formed in each sash and opening through the inner edges shaped l in?l gener-a1' ferm ari-ef extend out j channels" I I;v I2.` ,i r fIh'e spacerfsections 'I are laterally; eitndg" angesfforminglth'einnen'arm `of"the"U fr 'ai tion ,aridi` are arranged" transversely'. opposite" beadsflvs I4" Qntnenuternangesoftheju farina; tin"re'spi-:'ctively"v andA pressingagai'nstthemoiit faces of the glass panels 4, 5 outside of the channels II, I2.

The intermediate spa-cer section 8 is carried by a rib I5 on the Window frame extending inwardly between the sash 2, 3, the spacer section 8 being carried at the edge of the rib and shown as seated in a groove formed in the edge of the rib. The section 8 is of compressible resilient material, as rubber.

The means for clamping the sash sections 2,

3 toward each other are here shown as screws I6,

I'I extending through the sash 2, 3 respectively and threading into the rib. Preferably, the screws IB are out of transverse alinement with the screws I'I. When the sash are clamped toward each other, the spaced sections 6, I and 8 arey compressed, the sections G, 1 thrusting against the glass panels 4, 5 respectively in line with the beads I3, I4 and also thrusting against the intermediate spacer section 8. Thus, when the sash are clamped toward each other or toward the rib I5, the spacer sections are compressed and hermetically seal the space between the glass panels against unintended interchange of air between said space and the surrounding atmosphere within and outside the enclosure.

The frame I is mounted on the car body structure I8 around the Window opening in any suitable manner, as by screws I9.

In the form shown in Figure 1, it is necessary to remove one of the members of the sash, as the top rail, when a glass panel is to be removed and replaced.

In Figure 2 is shown a construction in which the spacer means are practically the same as shown in Figure 1, but the glass panels are removable and replaceable w'ithout demountingthe sash sections or without removing the top rail or other frame members. This isaccomplished by forming the cushioning means for the glass panels in sections and providing the removable sections 20 and 2l in the form of removable glazing strips on the outer sides of the glass panels, these glazing strips having base flanges seated in grooves 22 and 23 in the sash 2, 3 respectively.

The clamping means in Figure 2 are also subthereof. The cushioning means 9 or I0 are usu- 55 Stantially the same as shown in Figure 1, a1-

though any suitable clamping means may be employed in either structure.

In Figure 3, the spacer 25 is of resilient compressible material separate from the mounting means for the glass panel and is entirely carried by the rib I5 of the window frame, and as here shown, the spacer 25 and the rib are formed with interlocking tongue and groove, the rib being preferably formed with a lengthwise groove 26 in its inner edge and the spacer with the tongue 21 tted in the groove. In Figure 3, the sash sections are clamped toward each other in substantially the same manner as shown in Figures 1, 2.

Preferably in all forms of the invention, gaskets of resilient compressible material, as rubber, are interposed between the outer edges of the sash 2, 3 and the window frame to render theml weather tight against the window frame. 28 and 29 designate the gaskets interposed between the sash 2, 3 and the window frame I, these being preferably located between the corner edges of the sash and the corners between the rib I5 and the window frame I. These gaskets, if desired, may be held in position as by seating in recesses 30 in the rib I5 and then dove-tailed therein, asv

at 3|. Also, the engaging surfaces of the sash and the gaskets engage incline plane fashion, as

at 32. 'I'hese gaskets are large enough to permit the sash to compress them while the spacer is being compressed. The beveled surfaces facilitate this operation.

In any form of the invention, when the clamping means is operated to clamp the sash in the frame toward each other, the spacer means between the margins of the glass panels is compressed to hermetically seal the space between the glass panels.

What I claim is:

A double window construction comprising a window frame, a pair of sash mounted in the frame and provided with means for receiving the margins of glass panels, the frame being formed with a rib extending between the sash, spacing means of compressible resilient material between the margins of the glass panels and including sections carried by each sash and a third section carried by said rib and projecting beyond the edge thereof between the former sections, and means for clamping the sash toward each other and compressing the spacer sections carried by the sash against the margins of the glass panels and against the third section, the clamping means for the sash coacting with said rib.

CLOYD S. HENDERSON. 

